Borneo Confrontation

The Indonesia–Malaysia confrontation or Borneo confrontation (also known by its Indonesian / Malay name, Konfrontasi) was an armed conflict from 1963 to 1966 that stemmed from Indonesia's opposition to the creation of the Federation of Malaysia. After Indonesian president Sukarno was deposed in 1966, the dispute ended peacefully and the nation of Malaysia was formed.
40 Commando + 42 Commando served from 1962 - 1966
114 Commonwealth casualties, 180 Commonwealth wounded